/* =============================================
   PARALLAX WIKI — Obsidian/Farzapedia Style
   ============================================= */

:root {
  --bg-main: #111111;
  --bg-sidebar: #171717;
  --bg-hover: #222222;
  --bg-code: #1a1b20;
  
  --text-main: #d1d5db;
  --text-muted: #888888;
  --text-heading: #f3f4f6;
  
  --accent: #3b82f6;
  --accent-dim: rgba(59, 130, 246, 0.15);
  
  --border: #2e2e2e;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.6;
}

/* ---- TOPBAR ---- */
#topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}

#sidebar-toggle:hover {
  color: var(--text-main);
  background: var(--bg-hover);
}

.logo {
  font-weight: 600;
  color: var(--text-heading);
  text-decoration: none;
  font-size: 1.1rem;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.topbar-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.topbar-link:hover {
  color: var(--text-main);
}

/* ---- LAYOUT ---- */
#layout {
  display: flex;
  height: 100vh;
  padding-top: 56px; /* topbar offset */
}

/* ---- SIDEBAR ---- */
#sidebar {
  width: 280px;
  flex-shrink: 0;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  transition: width 0.25s ease, opacity 0.25s ease;
}

/* Desktop sidebar collapsed state */
#layout.sidebar-collapsed #sidebar {
  width: 0;
  opacity: 0;
  border-right: none;
  overflow: hidden;
}

.sidenav {
  padding: 1.5rem 1rem;
}

.nav-section {
  margin-bottom: 2rem;
}

.nav-group {
  margin-bottom: 1.5rem;
}

.nav-group-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
  font-weight: 600;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  margin-bottom: 2px;
  color: var(--text-main);
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.9rem;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover {
  background-color: var(--bg-hover);
}

.nav-item.active {
  background-color: var(--accent-dim);
  color: var(--accent);
  font-weight: 500;
}

.nav-item svg {
  opacity: 0.7;
}

/* hide scrollbar for clean look */
#sidebar::-webkit-scrollbar { width: 6px; }
#sidebar::-webkit-scrollbar-track { background: transparent; }
#sidebar::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }

/* ---- CONTENT ---- */
#content {
  flex-grow: 1;
  overflow-y: auto;
  padding: 3rem 2rem 6rem;
  scroll-behavior: smooth;
}

#article-container {
  max-width: 760px;
  margin: 0 auto;
}

/* ---- MARKDOWN STYLES ---- */
#article-container h1 {
  font-size: 2.2rem;
  color: var(--text-heading);
  margin-bottom: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

#article-container h2 {
  font-size: 1.5rem;
  color: var(--text-heading);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
}

#article-container h3 {
  font-size: 1.2rem;
  color: var(--text-heading);
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  font-weight: 600;
}


#article-container p, 
#article-container ul, 
#article-container ol, 
#article-container table, 
#article-container blockquote {
  margin-bottom: 1.2rem;
}

#article-container ul, #article-container ol {
  padding-left: 1.5rem;
}

#article-container li {
  margin-bottom: 0.4rem;
}

#article-container a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}

#article-container a:hover {
  border-bottom-color: var(--accent);
}

/* Internal wiki links */
#article-container a[href^="#/"] {
  color: var(--text-main);
  background: var(--bg-hover);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  text-decoration: none;
  border: 1px solid var(--border);
}
#article-container a[href^="#/"]:hover {
  border-color: var(--text-muted);
}

#article-container code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background-color: var(--bg-hover);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

#article-container pre {
  background-color: var(--bg-code);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow-x: auto;
  margin-bottom: 1.2rem;
}

#article-container pre code {
  background: transparent;
  padding: 0;
  border: none;
  font-size: 0.85em;
  color: #e5e7eb;
}

#article-container blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-muted);
  font-style: italic;
  margin-left: 0;
}

#article-container table {
  width: 100%;
  border-collapse: collapse;
}

#article-container th, #article-container td {
  padding: 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
}

#article-container th {
  background-color: var(--bg-sidebar);
  font-weight: 600;
  color: var(--text-heading);
}

#article-container hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* Wiki Frontmatter style */
.frontmatter {
  background: var(--bg-sidebar);
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-muted);
}
.frontmatter strong {
  color: var(--text-heading);
  font-weight: 500;
}

/* Mobile */
@media (max-width: 768px) {
  #sidebar-toggle { display: block; }

  /* Topbar: hide nav links, shrink search/graph to icon-only */
  .topbar-link { display: none; }
  .search-trigger span,
  .search-trigger kbd { display: none; }
  .graph-trigger span { display: none; }
  .topbar-right { gap: 0.75rem; }
  #topbar { padding: 0 1rem; }

  /* Sidebar: full-height slide-in panel */
  #sidebar {
    position: fixed;
    top: 56px;
    bottom: 0;
    left: 0;
    z-index: 90;
    width: 280px;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  #sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0,0,0,0.6);
  }

  /* Tap-outside overlay to close sidebar */
  #sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(0,0,0,0.4);
  }
  #sidebar-backdrop.visible { display: block; }

  /* Content */
  #content { padding: 1.5rem 1rem; }

  /* Article: full width, tighter font */
  #article-container {
    max-width: 100%;
    font-size: 0.95rem;
  }

  /* Command palette: full width on mobile */
  #command-palette {
    width: 95vw;
    max-width: 95vw;
    top: 4vh;
  }

  /* Tables: allow horizontal scroll */
  #article-container table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  /* Confidence badge: smaller */
  .confidence-badge { font-size: 0.75rem; padding: 0.2rem 0.5rem; }
}

/* ---- COMMAND PALETTE ---- */
.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  padding: 0.3rem 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.search-trigger:hover {
  border-color: #444;
  color: var(--text-main);
}
.search-trigger kbd {
  font-family: var(--font-mono);
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.3rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

#command-palette-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 10vh;
  opacity: 1;
  transition: opacity 0.2s ease;
}
#command-palette-backdrop.hidden {
  opacity: 0;
  pointer-events: none;
}

#command-palette {
  width: 90%;
  max-width: 600px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(0);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

#command-palette-backdrop.hidden #command-palette {
  transform: translateY(-20px);
}

.cp-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 0.75rem;
}

#cp-search-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: var(--text-heading);
  font-size: 1.1rem;
  font-family: var(--font-sans);
  outline: none;
}
#cp-search-input::placeholder {
  color: #555;
}

#cp-close {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 4px;
  padding: 0.2rem 0.4rem;
  font-size: 0.7rem;
  cursor: pointer;
  font-family: var(--font-mono);
}
#cp-close:hover {
  color: var(--text-main);
  border-color: #555;
}

#cp-results {
  max-height: 400px;
  overflow-y: auto;
  padding: 0.5rem;
}

.cp-empty {
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.cp-item {
  display: block;
  padding: 1rem;
  text-decoration: none;
  border-radius: 8px;
  margin-bottom: 4px;
  transition: background 0.1s;
}
.cp-item:last-child {
  margin-bottom: 0;
}
.cp-item.active, .cp-item:hover {
  background: var(--bg-hover);
}

.cp-item-title {
  color: var(--text-heading);
  font-weight: 500;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.cp-item-path {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent);
  opacity: 0.8;
}

.cp-item-snippet {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cp-item-snippet mark {
  background: rgba(59, 130, 246, 0.3);
  color: var(--text-heading);
  border-radius: 2px;
  padding: 0 2px;
}

.cp-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg-main);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
}
.cp-footer kbd {
  font-family: var(--font-mono);
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1rem 0.3rem;
  margin: 0 0.2rem;
}

/* ---- LIGHT THEME OVERRIDES ---- */
[data-theme="light"] {
  --bg-main:    #f9fafb;
  --bg-sidebar: #ffffff;
  --bg-hover:   #f3f4f6;
  --bg-code:    #f1f5f9;

  --text-main:    #374151;
  --text-muted:   #9ca3af;
  --text-heading: #111827;

  --accent:     #2563eb;
  --accent-dim: rgba(37, 99, 235, 0.1);
  --border:     #e5e7eb;
}
[data-theme="light"] #article-container pre code { color: #1e293b; }
[data-theme="light"] #graph-overlay { background: #f0f4f8; }

/* ---- READING PROGRESS BAR ---- */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent);
  z-index: 9999;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* ---- THEME TOGGLE BUTTON ---- */
#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem 0.4rem;
  display: flex;
  align-items: center;
  transition: color 0.15s, border-color 0.15s;
}
#theme-toggle:hover {
  color: var(--text-main);
  border-color: #555;
}

/* ---- BREADCRUMB ---- */
#breadcrumb {
  max-width: 760px;
  margin: 0 auto 1.25rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}
#breadcrumb.hidden { display: none; }
#breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}
#breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep {
  opacity: 0.4;
  font-size: 0.75rem;
}
.breadcrumb-current {
  color: var(--text-main);
  font-weight: 500;
}

/* ---- CONFIDENCE BADGE ---- */
.confidence-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid;
  margin-bottom: 1.5rem;
}
.confidence-badge.verified  { color: #10b981; border-color: rgba(16,185,129,0.3); background: rgba(16,185,129,0.08); }
.confidence-badge.high      { color: #3b82f6; border-color: rgba(59,130,246,0.3); background: rgba(59,130,246,0.08); }
.confidence-badge.medium    { color: #f59e0b; border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.08); }
.confidence-badge.low       { color: #9ca3af; border-color: rgba(156,163,175,0.3); background: rgba(156,163,175,0.08); }

/* ---- GRAPH TRIGGER BUTTON ---- */
.graph-trigger {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  padding: 0.3rem 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.graph-trigger:hover {
  border-color: #444;
  color: var(--text-main);
}

/* ---- KNOWLEDGE GRAPH OVERLAY ---- */
#graph-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #0a0a0a;
  z-index: 200;
  display: flex;
  flex-direction: column;
}
#graph-overlay.hidden {
  display: none;
}

#graph-header {
  height: 52px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1.25rem;
  flex-shrink: 0;
}

.graph-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-heading);
  font-size: 0.95rem;
  white-space: nowrap;
}
.graph-title svg {
  opacity: 0.7;
}

.graph-meta-text {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 400;
}

#graph-legend {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: nowrap;
  flex-grow: 1;
  overflow: hidden;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.graph-hints {
  font-size: 0.75rem;
  color: #444;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .graph-hints { display: none; }
  #graph-legend { display: none; }
}

#graph-close {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: color 0.15s, border-color 0.15s;
  flex-shrink: 0;
}
#graph-close:hover {
  color: var(--text-heading);
  border-color: #555;
}

#graph-svg {
  flex-grow: 1;
  width: 100%;
  display: block;
}

#graph-tooltip {
  position: fixed;
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  font-size: 0.84rem;
  color: var(--text-heading);
  pointer-events: none;
  z-index: 300;
  max-width: 240px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
#graph-tooltip.hidden {
  display: none;
}
.tt-title {
  font-weight: 600;
  margin-bottom: 3px;
}
.tt-meta {
  font-size: 0.73rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}
.tt-summary {
  font-size: 0.78rem;
  color: #888;
  line-height: 1.4;
}

/* ---- Last Updated text ---- */
/* Last Updated text */
.last-updated {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
  text-align: right;
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border);
}